20993947 is an odd 8-digits composite number following 20993946
and preceding 20993948 . In scientific notation, it is written as 2.0993947 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 19323360 positive integers (up to 20993947) that are relatively prime to 20993947.
20993947 has 8 divisors, whose sum is 22673840
The reverse of 20993947 is 74939902
Previous prime number is 379
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty million nine hundred ninety-three thousand nine hundred forty-seven
Scientific notation
2.0993947 × 10^7
Engineering notation
2.0993947 × 10^6
Prime Factorization
13 × 379 × 4261
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20993947
Product of the distinct prime numbers
The prime factorization of 20993947 is 13 × 379 × 4261.
Since it has a total of 3 prime factors.
5 , 3 , 100 , 68 , 279 , 152 , 2617 , 6029 , 17107 , 86646 , 73514 , 871654 , 7348957 , 9604731 , 84026417 , 85474845 , 591493899 , 59368113 , 5291005692 , 5410804771
n×2
41987894
n×3
62981841
n×4
83975788
n×5
104969735
n÷2
10496973.5
n÷3
6997982.3333333
n÷3
5248486.75
n÷5
4198789.4
n2
440745810638809
n3
9.2529941890232E+21
n4
1.9425686959566E+29
n5
4.0782184246772E+36
2 √n
4581.9152109134
3 √n
275.86590752256
4 √n
67.689845700175
5 √n
29.135254717165
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20993946
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20993947 can be divided by 8 positive divisors.
The sum of these divisors (counting 20993947) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000101011110011011
3
Ternary
1110111121021121
4
Quaternary
1100011132123
5
Quinary
20333301242
6
Senary
2025550111
8
Octal
120053633
10
Decimal
20993947
12
Duodecimal
7045337
16
Hexadecimal
140579b
20
Vigesimal
6b44h7
36
Base36
chz17
md5
cd3a845fc8cef11db011f3c82de08ef1
sha1
ae5632ace7ae84d427336e0d4a1d8ce4cb3093c4
sha256
a850e7047b7ad2fbb9a9ad8debf9a5995d8b8d5efb1babe043e71261033814b7
sha512
88744c6690ffe8a9c60fd8c79aeac3f39e6c4d520115950b99741dbd5a6936e764e5869c0d715fbc3820a65bf84f92e916085cc043a0d6249934f93cf15655bc
ripemd-160
2f51f32f32e692f17c22a742aa521be941fbe146
Diameter
41987894
Circumference
131908859.33011
Area
1.3846438008034E+15
Volume
3.8758851423926E+22
Surface area
5.5385752032134E+15
Circumference
131908859.33011
Perimeter
83975788
Area
440745810638809
Diagonal
29689924.575142
Surface area
2644474863832854
Volume
9.2529941890232E+21
Space diagonal
36362582.855408
Perimeter
62981841
Area
1.9084853431239E+14
Altitude
18181291.427704
Surface area
1.9084853431239E+14
Volume
1.0904758228897E+21
Height
9896641.5250473